openmptcprouter/root/target/linux/bcm27xx/patches-5.15/950-0425-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch

From b49dea974d69bda9954d307f248d1a1881189420 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Thu, 8 Jul 2021 13:48:11 +0100
Subject: [PATCH 425/828] bcm2711_thermal: Don't clamp temperature at zero

The temperature sensor is valid below zero and the linux framework is happy with it.

See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=315382
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
 drivers/thermal/broadcom/bcm2711_thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/thermal/broadcom/bcm2711_thermal.c
+++ b/drivers/thermal/broadcom/bcm2711_thermal.c
@@ -52,7 +52,7 @@ static int bcm2711_get_temp(void *data,
 	/* Convert a HW code to a temperature reading (millidegree celsius) */
 	t = slope * val + offset;
 
-	*temp = t < 0 ? 0 : t;
+	*temp = t;
 
 	return 0;
 }